Printing press



March 26,` 1940.

H. c. IORDHOY PRINTING PRESS Filed, April 24. 1.937

3 Sheets-Sheet 1 II I" #I I Y mw 2 .a ah

ATTORNEY Marches, 1940. V HfQJORDHOY 2,195,149

PRINTING PRESS Filed April 24, 1957 '3 Sheets-Sheet 5 I INVENTOR/74/1/.5 C-Jo//Oy ATTORNEY l 1 bowl.

Patefed Mar. 26, 1940 UNITED. STATES yrinNrlNo PRESS Harisy C. Jordhoy,North Plainfield, N. J., assignor to Wood Newspaper MachineryCorporation, New York, N. Y., a corporation of`Virginia ApplicationApril24, 1937, SerialNo. 138,675

v13 claims. (ol. 10i-157);l 1

The present invention relates to improvements in intaglio: presses ofIthe type adjustable for printing'from cylinders oi'diierent diameters.

An object of my invention is to provide a` 5y printingpress' in whichthe printing point is maintained constant andthe printing cylinderbearings are correspondingly. adjustable `fo-r cylinders .of differentdiameters. Obviously,` the fountain bowl must also be shifted forprinting cylindersof different sizes butfother changesv of parts,including the `troublesome adjustments of compensators. heretoforenecessary, yare avoided.

Another object of my invention is to provide.y

a housing for the printing cylinderand yfountain picked upgby the web,is prevented.

Other objects and advantagesof my invention will appear in thefollowingv `description of a preferred embodiment and thereafter thenovelty and vscope of the invention will be pointed out in the claims.A

In the accompanying drawings-z i Figure 1 is a View in end elevation ofa` printing couple embodying my invention, the parts being adjusted foralarge size printing cylindery'y Fig. 2 is a front elevation of thecouple lookingl from the right hand side of Fig. 1, `with certain partsshown in'section; t Fig. 3 is a .view in section taken'substantially onthe line 3 3 of Fig'. 2 but showing the parts adjusted for a small sizeprinting cylinder;`

Fig. 4 is. aview in section taken on lined-4 ofFigZand` A Y y Fig. 5 isa fragmental `endview 4showing one of the vertically adjustable blockswhich 'provide bearings for the journal vboxes of the print' ingcylinders. r The printing unit illustrated in the A,drawings isadjustable forprinting cylinders of two sizes, o one being just twicethe diameter of the other. It will be understood that a printing pressmay comprise a number of such units or couples disposed in tandem. v

yThe printing unit comprises ay base I to which This is .of importancewhen printing at- `slide blocks 26 highlyvvolatile ink on the cylinderbefore itis are bolted a pair .of side frames II. -Attlfleir PTENT. om@

upperends'y theframesv II are ybolted to beams.v I3,v which connect theunit illustratedy to other units'and otherparts vof thepress.v The web Wenters the; printing unit or 'couple from a precedingk printing cou-ple,or directly from av paper ,roll, passing rst about a water lcylinder I5which -is adapted to cool the web if it has compensator roll-IB andovera bar IY'I and enters between la rubber facedimpression cylinder I8and a printing cylinder 2.or`20A, as the case may be. 1- From theprinting cylinder. the printed f web passesabout a bending roll 22and-over av steam y'druml2v3. f Thence it is guided byvsuitable means(not shown) to the next .coupleof the press orhdirectly to the folder.

The cylinder I8 is pressed against the printingcylinder by apressurero1l.,2li.r The impression cylinder `I8 is journaled in blocks 2'Iwhichv been heated by the steam drum of a preceding f :printing unit.The web-then passes about a" have limited vertical ysliding movement inthe Toprevent overheating when running` at high, speed, thepressure-'roll may be water cooled', and,.to this end, provision ismadeA t i 25 for circulating water through the rollbyway of pipes'28'which `pass through stuffing boxes,

29. It will be understood that the vwater ,cyl inder I5 -is similarlycooled, being providedwith water pipe `connections `which .pass throughsuitable stufng boxes. f

The pressurejroll 24 and impression cylinder I8v arev friction driven bythe printing cylinder 20, and provision is made for adjusting theblocksv 26 s oas to vary the 'pressure'of the cylinder t IB ontheprinting cylinderand `also to raise the impression .cylinder `clearofthe printing cylinder, when changing yprinting cylindersor .when`threading` the web through the couple. To `this i end screws 32 are`provided whichfrise from the top ofthe slide blocks 26 respectively.Each-,

screw 32: is threaded through a nut 33 pivoted to one end of an arm 34.Each arm'34 is pivoted,

Vas at 35, to.v the adjacent side frame I I vand is held more or lessrigid.byl the'pressure of ,av heavy spr-ing at the yoppositaen'dthereof. The l screws .32.)` are attachedl to theslide blocks 2li isprovided at one end with .ahand wheel- 4I,

whereby it may be manually operated to turn the screws r32.. .v j y'lencloses said worm and worm gear.

A power means is also provided for turning shaft 40 when desired.Rotatably mounted on shaft 40 is a worm gear 43 which meshes with a Worm44 xed on a shaft 45. The latter is journaled in a housing 46 which ispivoted on the shaft 40 rand A plate 30 outside this housing isintegrally connected to the worm gear 43 and is formed with `an annularseries of holes 3|a', any one of which may be engaged by a spring seatedlock pin 3| in the hand wheel 4|. By this means the worm gear 43v maybelocked to the hand wheel and hence to shaft 40. from thehousing 48 andisprovided at its outer end with a pivot slot 49 to receive a stud 50projecting from the-adjacent press frame I. A rel versible motor 5| ismounted on this bracket and a suitable coupling 52 connects the motorshaft to the worm shaft 45. The motor bracket pivots' `on the` stud 50as the shaft 40 is raised or lowered by adjustment 'of the screwsy 32. g

The shaft 49 may be turned manually When th pin` 3| is disengaged fromplate 30 `or may be turned bythe motor 5| when the pin engages 'any ofthe holes 3Ia. Rotation of the shaft in one direction will turnfthescrews 32 in such direction as'to raise the slide blocks 26 and withthem the pressure roll 24 and impression cylinder. I8. Turning of theshaft in .theopposite direction will lower the impression cylinder and`cause `the pressure roll to bear against'the printing cylinder. Furtherrotation .of the shaft in lowering direction will result in applyingpressure of the springs 38 on the pressurey roll which.; in turn, willpress the impression cylinder I8 against the printing cylinder 20.

The printing `cylinder turns in lcylinder boxes 58 which rest in boredrecesses 51 formed inslide blocks 58 disposed respectively `at loppositeends of `the cylinder.

` The blocks 58 are mounted to slide in suitable ways 59- formed in thepress frame I I. .Each block is raised and lowered by a screw 60threaded into a nut 6| carried by the block. Each screw has a worm gear62 fixed thereto. The worm: gears are enga-ged by worms 63 fixed upon ashaft 64. The latter is provided at one end with a hand wheel 65, sothat by turning this hand wheel `the screws 60 will be rotated y and theblocks 58 will be raised or lowered as the case may be.Vv The framesAII,` are provided with sockets 66 to receive the nuts'l when the blocks58 are lowered.

In Fig. 1, I show a large printing cylinder 20 mountedl in operating,position, and in Fig. 3, a small printing cylinder 20A inv printingposition. The printing point which is the line of contact ofthe web withthe top ofthe printing cylinder,

`remains xed, and consequently the blocks 58 must'be loweredf to mountthe' cylinder 20 and must be raised to mount the cylinder 20A. When theblocks 58 are lowered to the position shown in Fig. 1 they may be lockedagainst the side frames I I by bolts 53 which are screwed into tappedholes 6,1 in the blocks, but when the blocks are raised to mountV thesmallcylinder 20A the bolts 53 are f threaded into other tapped holes 68in said blocks. When the blocks are in raised position theyproject sofar out of the ways 59 that the bolts may not suffice to hold themfirmly in place, and hence I provide a clampingjaw'i) oneach side frameII, as shown in Fig. 5.` This jaw enters a recess 10 formed at the topof the adjacent block 58 and 4by tightening up aiboltf1| the top of theblock is firmly clamped to the press frame. l

The printing cylinders are inked by dipping into A motor bracket 48(Fig. l) projects a fountain bowl 12 and obviously this bowl must beraised for a small cylinder 20A, and lowered yarms 15 are securedtovertical bars 18 which are provided adjacent their upper ends withteeth 11, as shown in Fig. 3.l These teeth are engaged by pinions 18fixed upon a shaft 19 extending from end to end of the couple andjournaled in the sideframes |I. At oneend of the shaft 19 a worm gear isxed, as shown in Fig. 1, and this gear is engaged by a worm 8| on a wormshaft 82 which is provided with a hand wheel 83. By operating this handwheel the arms 15 willlbe raised and lowered, as desired, to adjust theposition of the fountain bowl.

As shown particularly in Fig. 3, a doctor blade is mounted close to theprinting point and by comparing the position of the doctor blade in Fig.3 with that in Fig. 1 it will be observed that a very slight adjustmentis required to adapt the blade for rdifferent sizes of cylinders. Itwill also be notecl that the angular distance between the printing pointand the point of contact of the doctor blade with the printingcylinderis comparatively small, so that thereis little opportunity for the inkon the cylinder to dryl before it is picked up by theweb W.

The doctor Yblade 85 is clamped in a holder 86 whichis pivoted upon aslide block 81 `adapted to slide on a rail 88 extending from end to endof the couple. In order to provide for the adjust- V ment from the'position shown in Fig. 1` to that Ashown in Fig. 3, or, vice versa, `therail 88 is slidably fitted to blocks 89 Whichare fixed to the pressframe II. While the rail is" slidable laterally on said blocks, it isprevented from moving endwise by a central vbracket 95 fastened to thebottom of the rail, as shown in Fig.`- 3. bracket is slotted lengthwiseto receive a shoulder screw |00 threaded into a `brace |0I connectingthe opposite press frames I I. The adjustment of the doctor blade iseffected by operating a crank 90 at each end of the couple. Each crank90 is fixed. upon a screw 9| which passes through a poppet 92 fixed tothe adjacent frame II and which is maintained against endwisedisplacement by collars 93 fixed on the screw and bearing againstoppositel faces of the poppet 92. Each screw is threaded through apop-pet 94 fixed upon rail 88 so that by turning the crankv 90 the rail88 is adjusted laterally toward or from-the printing point. The slideblock 81 is reciprocated on the rail lbymeans which will bedescribedhereinafter. Pressure of the doctor blade 85 on the t printingcylinder is maintained in the usual manner,. by a weight 96 attached toa chain 91 that passes over a sheave 98 and is fastened to an arm 9 9fixed to the holder 86. v

A housing |02 encloses the printing cylinder and the fountain bowl, asshown to best advantage in Fig. 3. This housing is provided at the frontwith a pairof doors |03 and |04 which are hinged vrespectively at thetop and bottom of the housing. In order to permit of changing printingcylinders, the side wall of the vhousing |02 isl formed with openings|05 extending inwardly from the front of the housing, and each openingis normally closed by a slidingdoor |06. Each doorv is formed with adouble lip |01 at the top and bottom to receive, respectively, the upperand lower edges 0f the opening |05. At its inner end each opening isformed with a pair of halfroun'd cutouts |08 and`v |09 respectively, toclear fro through a drain pipe H8. Referring now to Figs. 2 and 4, itwill be seenl the' printing cylinder shafts. When the4 large printingcylinder 26 is mountedin the couple, as

couple, a projecting cover platev H'| is provided.

on each of the doors |66. llVhen the smaller printing cylinder 20A ismounted in place, as shown in Fig. 3, the shaft of this cylinder passesthrough 'the upper cutouts |68. The sliding doors |66 are then invertedso that thecutouts H6 will register withcutouts |08 to fit about saidshaft, and the cover plates IH will-then close the openings |69.`

The housing |02 which rises above the printing point has an opening atthe top to admit the web W and the pressure roll i8, as well as thedoctor blade and operating mechanism therefor. However, there is abaiile plate H2 depending kfrom the rail 88 and another baffle plate H3xed to the doctor blade holder 86 which in large measure shield theprinting cylinder from exposure to a drying atmosphere. These bafesserve .to catch the inkthat is scraped from the printing cylinder by thedoctor blade and any ink spray that may be thrown oif centrifugallyfromthe printing cylinder, and cause such ink to flowy back into thefountain bowl. The fountain bowl is supplied with ink through an inlet Hwhich may be suitably connected by a flexible pipeto a pump. Surplus inkoverflows the rolled edge I6 at the rear of the' fountain and drops tothebottom of the housing |02. Thence it passes out that the printingcylinder is driven by a main shaft |r which extends lengthwise of thepress and is journalled in suitable bearings |2| sup' ported onpedestals |22. The shaft passes through a gear box |23 and has a worm|24 fixed thereon `within said box. This worm drives two worm gears|25vand |26. The wormgear |25 isjust half the diameter of the worm gear|26, vand consequently the shaft |21 to which the Worm gear |25 isfixed, will be driven at twice the speed of the shaft '|26 to which theworm gear |26 is secured.` As will be explainedlater the shaft |21 isarranged to drive the smaller printing cylinder 2BA, While the shaft |28drives the larger printing cylinder 20 at half the rotational speed ofcylinder 26A, but the surface speed of these cylinders will be thesame.`

Fixed upon the shaft |21 is a Worm |30 which drives a worm wheel |3|`.The latter is mounted on a shaft |32 (Fig. 4) which projects from thehousing `|23 andv has at its outer extremity a crank |34. This crank isconnected yby a link |35 to a pin |36 connecting the lower ends of apair of bell crank levers |31 mounted on a shaft |38. The upper ends ofthese leversare connected by a pin |39 which forms a bearing for a link|40' that is connected to the doctor blade slide block 81. By lthismeans said block is reciprocated causing a corresponding reciprocationrof the doctor blade attached thereto. The link |40 is slidable on'thepin |39 to provide for variations in adjustment of. the rail 88.`

The shaft |21 is suitably supported in journals in the housing |23l and.projects .throughl the housing on the press side, i. e., the left side,as viewed in Fig. 2. Fixed upon this projecting part of the shaft is atransversely slotted hub |42.

[which engage slots formed in a split clutch member |49 clamped upon theadjacent end of the for cylinders of diife'rent sizes will be now'illustrated kby reviewing the steps necessaryl to re- |62 are thenswung openin which position i The shaft |28 is operatively connected bygears |43and |44 of equal diameter to a shaft |45 vwhich projects fromthe press side of the housing |23 and has a slotted hub |46 fixedthereon. Hubs |42 and |46 are of the same dimensions and 5 each isadapted for engagement with a dog |41. In Fig.`2, this dog is bolted tothe hub |46 with a i` transverse' rib thereonseated in the slot of saidhub. The dog |41 is forked, having lugs M8 printing cylinder shaft.Thus, a driving con-A nection is provided for the large cylinder' 26.When the smallercylinder 20A is used the clutch member |49 is secured tothe shaft of said cylinder and the forked ldog |41 is fastenedv to thehub |42. Since the gearing is such that the peripheral speed ofthe twoprinting cylinders will be the same there will be noc-hange in speed ofthe webyW` and other friction driven parts.

To provide for axial adjustment of the cylinders a bracket |58 issecured to the block 56 on the end remote from the driving gear;I Thisbracket carries a nut |5| through which a feed screw-|52 may be screwedbyoperating a hand wheel |53 on the outerend ofthe screw. rThe screw |52has aswivel connection toA a fitting l 55 which isbolted on the adjacentend of `the printing cylinder-shaft. The swivel connection permits the-screw |52 to turn freely but prevents 30 axial movement of the screwwith respect to the fitting |55. By thismeans the printing' cylinder maybe adjusted axially, as necessary, to obtain a proper printing register.i 1

The steam drum 23 is mounted in suitable bearings |66 formed inbrackets`|6| mounted on the overhead beams i3. The drum is fitted with asteam inlet` pipe |62 and an outlet pipe |63, and these pipes passthrough suitable stuiiing boxes, as indicated at |64.- The steam drumvis posi-` do tively driven by the impression cylinder 24;. To this end asprocket wheel |66 is fixed upon the shaft of the pressure roll, and afsprocket chain |61 provides a driving connection between sprocket wheel|66 and a sprocket wheel |68 fixed upon a'shaft |69. The latter has apinion |16 fixed thereto which meshes with a gear l1! fixed upon thesteam drum. 23. The sprocket chain |61 is passed about a pair ofridlersi 12 and The operation of adjusting'the printing couple place theprinting cylinder 26 with the printing cylinder 26A. It will beunderstood that the sequence of these steps may be varied. doctor bladeis first raised by depressing the arm and is held in this position by ofa latch- |15. The pressure rollblocks 26 raised by turningV the shaft 46manually, or by means of the motor 5|. so' as to relieve pressure oncylinder 2Q. The tting |55 is unclarnped from one end of the cylindershaft and the coupling mais unclarnped from the'opposite end shaft. Thedoors |03 and |613 of the ho are held by springs |16 and |11respectively. 70y saidsprings are c-arriedpast dead center. The

sliding doors it are drawn out of their positions `in the side wallsofthe housing'and the cyiinder ,213 thenmay be removed through thefrcntof the housing. Preferably, the fountain bowl 12 is removed from itssupports before the cylinder is withdrawn. The dog |47 may now beunfastened from the lower hub [46 and secured to the upper hub M2. Theslide blocks 58 may then be raised to` their proper position byoperating hand wheel 65 and be secured by means of the bolts 53 andclamps 63, afterwhich the smaller cylinder Amay be mounted in place withits` journal boxes supported in said slide blocks.

The fountain bowl support` is then raised byv operating the hand Wheel83 and the fountain bowl is placed in position on its supports. Thesliding doors it are now inverted and reintroduced to close the openingsm5 with the cover plates Hl in position to close the lower cutouts W9 inthe side Walls of the housing. The doors |63 and H34 may thenbe closed.The' fitting H55 may now be clamped upon the shaft of the other, but myinvention is not limited to such relative sizes cf cylinders. Thus,while I have described a preferred embodiment of my invention, it willbe understood that this is to be taken as illustrative and notlimitative, and that I reserve the right to make Various changes inform, construction, and arrangement of parts, without departing from thespirit and scope of my invention as set forth in the following claims.

I claim: s

l. A printing couple adapted to include', interchangeably, printingcylinders of different diameters, in combination with a frame, printingcylinder bearings adjustably mounted on the frame, means for adjustingsaid bearings to compensate for the different cylinder diameters andbring each cylinder to the same printing point, an ink fountain intowhich the printing cylinder extends to be inked, means for adjusting thefountain to accommodate the printing cylinders of diiierent` diameters,and means for driving the printing cylinder adjustable to compensate forthe differentcylinder diameters and give each of said diierent sizedcylinders the same surface speed.

2. A printing couple including, interchangeably,` printing cylinders ofdiierent diameters, an ink fountain into which the printing cylinderextends t0 be inked, means for adjusting the fountainto accommodate theprinting cylinders of different diameters, av frame, a pair of supportsmounted to slide on the frame, a. pressure roll mounted in saidsupports, a pair of slide blocks slidable on the frame and providingbearings in which the printing cylinders may be mounted, means foradjusting said blocks to compensate or the different cylinder diametersso that each printing cylinder may be brought to the same printingpoint, means for adjusting said'supports to vary the pressure of saidpressure roll `transmitted to the printing cylinder, means for drivingthe printing cylinder adjustable tc compensate for different sizes ofprinting cylinders so as to give each cylinder the same surface speed,and means for guiding the web between theprinting cylinder and pressureroll.

3. In a web pressa printing couple adapted to include, interchangeably,printing cylinders of different diameters, a frame, means supported bythe frame for guiding a web to a fixed printing level, an ink fountaininto which the printing cylinder extends to` be inked, means foradjusting the fountain to accommodate the printing cylindersof diierentdiameters, slide blocks manually adjustable on the frame toward and fromsaid printing level, said blocks providing bearings in which theprinting cylinders maybe interchangeably mounted, manual means foradjusting said blocks to compensate-for the different printingcylinderdiameters, said web guiding means including means for pressing the webagainst the printing cylinder at said printing level, and means foradjusting the pressure of the web against the printing cylinder.

4. In an intaglio printing press, a printing couple adapted to include,interchangeably, printing cylinders of different diameters, a frame,bearing blocks mounted to slide on the frame and providing bearings inwhich the printing cylinders may be interchangeably mounted, means foradjusting said bearings to compensate for the different printingcylinder diameters so as to bring each cylinder to the same printingpoint, a doctor blade adapted to engage the printing cylinderimmediately i adjacent said printing point, and means for adjusting saidblade to compensate for the different printing cylinder diameters.

5. In an intaglio printing press, a printing couple adapted to include,interchangeably, printing cylinders of diierent diameters, aframebearing blocks mounted to slide on the frame and providing bearingsin which the printing cylinders may be interchangeably mounted, meansfor adjusting said bearings to compensate for the different printingcylinder diameters so as t0 bring each cylinder to the same printingpoint, a doctor blade adapted to engagethe printing cylinderimmediatelyI adjacent said printing point, and means for adjusting saidblade toward and vfrom the printing point to compensate for thedifferent diameters.

6. InV an intaglio printing press, a printing couple adapted to include,interchangeably, printing cylinders of diierent diameters, a frame,bearings slidable vertically on the frame to mount said printingcylinders interchangeably, means for adjusting said bearings tocompensate for the different printing cylinder diameters vsoas to bringeach cylinder to the same printing point, a doctor blade adapted toengage the printing cylinder immediately adjacent said prin/ting point,a mounting for said blade adjustable horizontally on the frame, andmeans for adjusting said mountingto compensate for different printingcylinder diameters.

7. In a printing press, a printing couple adapted to `include either ofa pair of printing cylinders, oney cylinder being twice the diameter ofthe other, a frame, blocks slidable vertically on the frame andproviding bearings for either of said printing cylinders, means foradjusting said bearings toy compensate for the diierence in diameter ofthe cylinders so as to maintain a common printing level for bothcylinders, a driving gear provided with two driving elements, one a highspeed element and the other a slow speed element, one driven at doublethe speed of the other, and meansrfor coupling the cylinder of largerdiameter to the slow speed element Iand printing cylinder thejslow speedelement, or the small cylinder to" the small cylinder tothefl'ighspeedvelement sov as to maintain the same printing speed witheither of said cylinders.

8; In an intaglio printing press, .a printing couple adapted to includeeither of a pair of printing cylinders, onecylinder having twice the ,i

diameter of the other, a Aframe, blocks slidable vertically on the framevand providing bearings for either of said cylinders, means foradjusting said bearingsfto bring theprinting cylinder to a fixedprinting point to compensate for the difference in diameter of thecylinders so as toi [maintain a commonl printing point for bo-th cylfinders a driving gear provided-with two driving elements, one driven-Vatdouble the speed of the.v

other, means for coupling the large cylinder to the high speed elementso as to maintain the same printing speed with either of said`cylinders, and aldoctor blade adapted to engage the printing cylinderadjacent said printing point,

meansA operated by said driving gear for recipro# eating the doctorblade, and meansfor adjusting 'the doctor blade toward and from saidprinting point to compensate for the difference in diameterof theprinting cylinders..

9. -In an intaglio printing press, a printing couple adapted toincludeeither oftwo printing cylinders of differentdiameters, a frame,print-v ingA cylinder bearings mounted on the frame and adjustable invertical planes, means for effecting such adjustment ofthe bearingswhereby each of-said cylinders may be adjusted to the same printinglevel, afountain bowl into .which either of said cylinders extends to beinked, means for adjusting the fountain lbowl vertically, and a` housingenclosing kthe printing cylinder and fountain bowl.L l v l10. In anintaglio printing press, Aa printing lcouple includingeither of twoprinting cylinders of different diametersbut y.having shafts @of thesame diameter, a frame, slide blocks mounted on said, frame andproviding `bearings-for the shaft of either printing cylinder, means foradjusting thebearingsl vertically between two positions vso related thateither of the printing cylinders may be adjusted to the same printinglevel, a fountain bowl, means for. adjusting the fountain bowl lvertically, a housingfor the printing cylinder and fountain bowlfittedbetween said blocks,

'said housing having end walls each formed withv j anv opening to clearthe cylinder shaft in either position ofthe bearings, and means adaptedto v fitaboi'it-said shaft and close said openings.

11. In an intaglio printing press, va printifllg` couple includingeither `oftwo printing cylinders of Aiiirererit diameters but havingshafts cf the same diameter, a frame, slide blocks mounted on said frameand providing bearings foreither printing'cylinder shaft, means foradjusting the bearings vertically between two positions so rejlatedthateach of the kprinting cylinders may be adjusted to the sameprinting'level, a vfoun'- tain bowl, means foradjusting thefountain bowling. position,y the end wall-l of .each'opening being l f formed with apaircf .half-'round recesses, one

- foreach shaft, and a sliding door for each housingopening, `said doorbeing formedvvwlth an lend extension to close thefupper one of saidrecesses and a `half-round end recessto matchy the lower recess of saidpair and form therewith a complete circular shaft opening, said doorbeing reversible to close said lower recess and Aform a shaft openingwith said upper recess.

12. in yan intaglio printing press, a printing couple, a" frame, slide`blocks mountedonsaid f frame and providing bearingsjfor the printingcylinder shaft, means for adjusting the bearings vertically, a fountainbowl vfor the'printingv cylr inder, means for adjusting, the Ifountainbowl j vertically, and a housing for the" printing 'cylinder `andfountain 4bowl -itted betweenfsaid' blocks., each end wallof thehousingjhaving an opening therein centered with respect tosaid positionsand adapted to clear they shafts in eachA bearing position, the end walllof each `,openingbeing formed withr a'pair oflhalf-round recesses, one

for each shaft, and a vsliding door fory each heusvy ing opening, saiddoor being formedwith an end and a half-round end'recess to-,match thelower recess of said lpair and formy therewith a ycoin--A plete circularshaft opening, said door (being l extensionmto close the upperone ofsaid recesses.

reversible to closesaid lower recess: and forma shaft opening withsaidupperrecess. v f f 13. In an intaglioprintingpress, a printingcouple, aframe, slide blocks mounted onv said frame andkprovidingbearings for the shaft of lthe printing cylinder, means foradjusting the vbearings vertically, va fountainrv bowl for the printingcylinder, means for adjusting =the fountain bowl vertically, a housingfor the printing cylinder and fountain bowl fitted between saidblocks,

- said housing having end walls eachformed withv an opening-,to clearlthe cylindershaft in any,

position of vthe bearings, and means adaptedto f t about said shaft andclose said openings,

HANS c.y Jonnnor.

